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Docker DCA Exam - Topic 5 Question 86 Discussion

Actual exam question for Docker's DCA exam
Question #: 86
Topic #: 5
[All DCA Questions]

You created a new service named 'http' and discover it is not registering as healthy. Will this command enable you to view the list of historical tasks for this service?

Solution: 'docker ps http'

Show Suggested Answer Hide Answer
Suggested Answer: B

The command 'docker ps http' is not the correct command to view the list of historical tasks for a service in Docker1. The 'docker ps' command is used to list containers1. If you want to view the list of historical tasks for a service, you should use the 'docker service ps' command2. This command lists the tasks that are running as part of the specified services and also shows the task history2. Therefore, to view the list of historical tasks for the 'http' service, you should use the command 'docker service ps http'2.


by Joaquin at May 01, 2024, 08:45 AM

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Francoise
3 months ago
Wait, are you sure? I thought it might work!
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Luther
3 months ago
Yeah, I agree, it won't show historical data.
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Patria
3 months ago
I thought 'docker ps' only shows running containers?
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Jesusita
4 months ago
Definitely a "No" on that one!
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Malissa
4 months ago
That's not the right command for historical tasks.
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Candida
4 months ago
This seems similar to a practice question I did, and I believe the answer is 'No' because 'docker ps' doesn't show historical tasks.
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Arthur
4 months ago
I might be mistaken, but I thought 'docker ps' only lists active containers, not the historical ones.
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Freeman
4 months ago
I remember practicing a question about checking service health, and I don't think 'docker ps' is the right command for that.
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Margurite
5 months ago
I think 'docker ps' shows running containers, but I'm not sure if it includes historical tasks for a service.
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Rasheeda
5 months ago
I'm pretty confident this is a "No" answer. The "docker ps" command is for listing running containers, not historical tasks for a specific service. To view that kind of historical information, I'd need to use a different Docker command.
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Maurine
5 months ago
Okay, I think I've got this. The "docker ps" command is used to list running containers, but it won't show me the historical tasks for a specific service. I'll need to look into other Docker commands that can provide that kind of historical information.
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Kent
5 months ago
I'm not sure about this one. The question mentions a "service named 'http'" but the solution talks about "docker ps http". I'm a bit confused on how those relate.
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Vernice
5 months ago
Hmm, I think the key here is that the question is asking about historical tasks for the service, not just the current status. The "docker ps" command might show me the current running containers, but I'm not sure if that would include historical tasks.
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Yen
5 months ago
I remember learning about the deployment server in class, and I think it can push apps to both universal forwarders and Splunk Cloud. I'll go with A and B just to be safe.
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Skye
2 years ago
So, it's B) No, right?
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Arlette
2 years ago
Yeah, it doesn't seem like the right command for viewing historical tasks.
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Jerry
2 years ago
I don't think so. 'docker ps' lists running containers.
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Arletta
2 years ago
Do you think 'docker ps http' shows historical tasks?
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Skye
2 years ago
I agree, it's a little confusing.
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Jerry
2 years ago
The question seems tricky.
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